feat: support /ipns/ at HTTP Gateway

It requires below to land first:
ipfs#1918

License: MIT
Signed-off-by: Marcin Rataj <lidel@lidel.org>

src/http/api/routes/webui.js

@@ -5,10 +5,10 @@ const resources = require('../../gateway/resources')
 module.exports = [
   {
     method: '*',
-    path: '/ipfs/{cid*}',
+    path: '/ipfs/{immutableId*}',
     options: {
       pre: [
-        { method: resources.gateway.checkCID, assign: 'args' }
+        { method: resources.gateway.checkImmutableId, assign: 'args' }
       ]
     },
     handler: resources.gateway.handler

src/http/gateway/resources/gateway.js

@@ -45,12 +45,17 @@ class ResponseStream extends PassThrough {
 }
 
 module.exports = {
-  checkCID (request, h) {
-    if (!request.params.cid) {
+  checkImmutableId (request, h) {
+    if (!request.params.immutableId) {
       throw Boom.badRequest('Path Resolve error: path must contain at least one component')
     }
-
-    return { ref: `/ipfs/${request.params.cid}` }
+    return { ref: `/ipfs/${request.params.immutableId}` }
+  },
+  checkMutableId (request, h) {
+    if (!request.params.mutableId) {
+      throw Boom.badRequest('Path Resolve error: path must contain at least one component')
+    }
+    return { ref: `/ipns/${request.params.mutableId}` }
   },
 
   async handler (request, h) {

src/http/gateway/routes/gateway.js

@@ -2,19 +2,37 @@
 
 const resources = require('../resources')
 
-module.exports = {
-  method: '*',
-  path: '/ipfs/{cid*}',
-  options: {
-    handler: resources.gateway.handler,
-    pre: [
-      { method: resources.gateway.checkCID, assign: 'args' }
-    ],
-    response: {
-      ranges: false // disable built-in support, we do it manually
-    },
-    ext: {
-      onPostHandler: { method: resources.gateway.afterHandler }
+module.exports = [
+  {
+    method: '*',
+    path: '/ipfs/{immutableId*}',
+    options: {
+      handler: resources.gateway.handler,
+      pre: [
+        { method: resources.gateway.checkImmutableId, assign: 'args' }
+      ],
+      response: {
+        ranges: false // disable built-in support, we do it manually
+      },
+      ext: {
+        onPostHandler: { method: resources.gateway.afterHandler }
+      }
+    }
+  },
+  {
+    method: '*',
+    path: '/ipns/{mutableId*}',
+    options: {
+      handler: resources.gateway.handler,
+      pre: [
+        { method: resources.gateway.checkMutableId, assign: 'args' }
+      ],
+      response: {
+        ranges: false // disable built-in support, we do it manually
+      },
+      ext: {
+        onPostHandler: { method: resources.gateway.afterHandler }
+      }
     }
   }
-}
+]

src/http/gateway/routes/index.js

@@ -1,3 +1,3 @@
 'use strict'
 
-module.exports = [require('./gateway')]
+module.exports = [...require('./gateway')]